Pennsylvania narcotics agents, aided by local police, broke up a million-dollar Lehigh Valley methamphetamine ring following an investigation that lasted more than a year, the Pennsylvania Attorney General's Office announced today.

Members of the state Attorney General's Bureau of Narcotics Investigation and Drug Control in August 2011 began an investigation into the sale of crystal methamphetamine in and around Lehigh and Northampton counties, according to the attorney general's office. Agents found a lucrative enterprise capable of distributing more than a pound of methamphetamine -- worth $90,000 -- per week, officials said.

A statewide investigating grand jury today approved charges against six men who are allegedly the primary players in the ring: Anthony "Skinny" Serratore, 35, of Bethlehem; Johnny "Amigo" Constanza, 48, of Allentown; Edward "Eddie" Pope Jr., 34, of Easton; Michael Corby, 43, of Wind Gap; Robert Thornton Jr., 28, of Bethlehem; and William Lavenburg, 35, of Wind Gap.

The suspects were all arrested and arraigned before District Judge Joseph Barner.

Starting in late 2009, Constanza began giving Serratore, who was a regular patron at a barbershop where Constanza worked, about 2 to 10 ounces of crystal meth a week to sell, according to a grand jury report. Serratore, in turn, sold the drug to Pope, Corby, Thornton and Lavenburg, among others, documents say.

Authorities used police informants to buy crystal meth from the suspects and got warrants to search their homes, according to the court documents. When questioned by officials, Serratore, Pope, Corby and Lavenburg all admitted their involvement in the meth ring, documents say.

Over the course of the investigation, agents seized about a half-pound of crystal meth, $26,000 in cash and a dozen firearms, officials said. State agents are tracing the source of the meth and investigating users, officials said. Additional arrests are anticipated.

Each of the suspects is charged with possession with intent to deliver methamphetamine, criminal conspiracy to sell methamphetamine, being involved in a corrupt organization, delivery of methamphetamine, criminal use of a communication facility and dealing in proceeds of unlawful activities.

Bail for the suspects was set at $200,000 for Constanza, 10 percent of $100,000 for Serratore, $175,000 for Pope, 10 percent of $200,000 for Corby, $250,000 for Thornton and $100,000 for Lavenburg.